Home / 1,230,625.91-1,698,219.47-771,987.41

Finding the Fourth Proportional to 1,230,625.91, 1,698,219.47 and 771,987.41

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Solution

The fourth proportional to 1,230,625.91, 1,698,219.47 and 771,987.41 is: 1,065,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,625.91 : 1,698,219.47 = 771,987.41 : x
  2. Step 2: Convert to fraction form
    1,230,625.91/1,698,219.47 = 771,987.41/x
  3. Step 3: Cross multiply
    1,230,625.91x = 1,698,219.47 × 771,987.41
  4. Step 4: Simplify right side
    1,230,625.91x = 1,311,004,050,064.07
  5. Step 5: Solve for x
    x = 1,311,004,050,064.07/1,230,625.91
  6. Step 6: Final answer
    x = 1,065,314.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.